Why is my text size so small after changing my screen magnification to 125% and back?
Most of the items you mentioned are also controlled by themes, The font sizes for the Operating systems title bars, and menues and all. Try Changing the theme in the control pannel personalisation themes, even if you change it right back to the theme you were on.
We Also had some specific Programs, that did not respond correctally to the Windows 7 DPI change, One program when I put the DPI up, the text got really small. ? If it is any aspects of the OS itself and not program specific, "refresh your theme" , go to personalise themes and change the theme to another one, just as a starting point. Run a refresh on the desktop too.
The DPI setting should not change between themes, but the font used and font sizes can. in XP One location for theme font size changing (quick) in "Display properties" [Apperances] tab "Font size". Then save your "modified theme". . In the same location the "advanced" button will allow you to adjust most of the various font and sizes, even when themed. OKing and APPLYing to be able to see the changes. Even with all the change locations, there will be some things that are locked in size, as thier windows and format is also locked, and 96DPI will still be small for those few things.
In WIN7 the location is Different, in the personalisation section, and Called "windows Color" In the AERO interface you have to go to the Windows color, then the "advanced apperance settings" at the bottom of windows color